At Richconn, we rely on rack and suspend technology to provide black oxide coating services that are delivered quickly and meet high quality standards. Our customers receive parts with a striking black finish without the performance issues that can be associated with traditional painted surfaces.
Based on years of experience, Peregrine is focused on meeting the exact specifications and industry standards for black oxide coating services for your parts.
Need help with black oxide coating or other plating needs? Please feel free to contact us!
For a striking black finish and superior corrosion protection, black oxide coating may be the best choice. There is no need to worry about paint flaking, coating loss or surface abrasion. All of these properties make black oxide finish an economical and reliable solution for ensuring that your metal parts have an attractive appearance.
Black oxide coatings are commonly applied to a wide variety of metal parts, especially those requiring corrosion protection and a black appearance, such as: bolts and nuts, steel pipes and fittings, automotive parts, weapons and firearms parts, agricultural equipment parts, machine parts, tools and blades.
Specification | Synopsis |
|---|---|
| MIL-C-13924C | No dimensional change |
| Class 1 | Alkaline, oxidizing. for wrought iron, cast and malleable irons, plain carbon, and low alloy steels |
| Class 3 | Fused salt oxidizing. (Not performed at TPP) |
| Class 4 | Alkaline oxidizing. For 300 series Corrosion resistant steel alloys only. |
Richconn's black oxide coating service started in 2008, with 16 years of metal blackening coating experience, we can provide you with black oxide coating services on iron, aluminum, copper, nickel, stainless steel, and steel for increasing the corrosion resistance of your parts, minimizing light reflection, and enhancing the appearance of your parts. It can be used with oil or wax coatings for maximum corrosion resistance.
16 years of experience in providing professional black oxide coating processing services to over 1000 mold factories.
We have more than 80 sets of advanced black oxide processing equipment.
Can provide you with a variety of metal materials surface treatment process solutions.
Equipped with professional and technical personnel, all-weather to help you solve the problem of product use
The process flow of metal blackening is as follows:
Degreasing: Boil the parts in degreasing solution for 20~30 minutes at 80~100 ℃.
Cold water cleaning: rinse with flowing clean water.
Pickling: wash with hydrochloric acid solution at room temperature for no more than 30 seconds.
Blackening (put the blackening liquid in a stainless-steel container and heat the bottom with an electric furnace)
Water washing: wash with flowing cold water or warm water for 30-60 seconds.
Boiling water cleaning: 2-5 minutes.
Saponification treatment: temperature 80~90°, time 2-3 minutes.
Immerse in oil: immerse in transformer oil or spindle oil at about 80° for 1-3 minutes, and then the finished product is cleaned.
Below are real feedback from our valued customers, we have been engaged in black oxidation services for 16 years.
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